In 10 minutes, Caleb's hear can beat 700 times. Steve's heart beats 536 times in 8 minutes. How many more times does Caleb's heart beat in 5 minutes than Steve's heart?

The number of nails of a given length is normally distributed with a mean length of 5.00 in, and a standard deviation of 0.03 in. find the number of nails in a bag of 120 that are less than 4.94 in. long.

It says factor each expression 49x-28?

Present age of man is 45 years, 5 years back his age was 4 times age of his son what is present age of his son?